feat: catch errors when sending messages #918 (#1113)

### What problem does this PR solve?

feat: catch errors when sending messages #918

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/flow/chat/drawer.tsx

@@ -11,6 +11,7 @@ const ChatDrawer = ({ visible, hideModal }: IModalProps<any>) => {
       open={visible}
       getContainer={false}
       width={470}
+      mask={false}
       // zIndex={10000}
     >
       <FlowChatBox></FlowChatBox>